Noting #1374

Signed-off-by: NOleg Nenashev <o.v.nenashev@gmail.com>

changelog.html

@@ -84,6 +84,9 @@ Upcoming changes</a>
   <li class=rfe>
     Show keep build log reason in tool tips
     (<a href="https://github.com/jenkinsci/jenkins/pull/1422">pull request 1422</a>)  
+  <li class=bug>
+    Do not disable projects, which do not support such operation (like Matrix configurations)
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-24340">issue 24340</a>)  
 </ul>
 </div><!--=TRUNK-END=-->
 

core/src/main/java/hudson/model/AbstractProject.java

@@ -693,6 +693,7 @@ public abstract class AbstractProject<P extends AbstractProject<P,R>,R extends A
      * The method will ignore the disable command if {@link #supportsMakeDisabled()}
      * returns false. The enable command will be executed in any case.
      * @param b true - disable, false - enable 
+     * @since 1.585 Do not disable projects if {@link #supportsMakeDisabled()} returns false
      */
     public void makeDisabled(boolean b) throws IOException {
         if(disabled==b)     return; // noop